Public Water Partners

Maple Valley, WA · King County

EDGEHILL WATER ASSN Water System

Consumer Confidence Report status

EDGEHILL WATER ASSN must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for EDGEHILL WATER ASSN.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Washington’s official records. Always confirm current status with Washington before making decisions based on this information.

System facts

System ID (PWSID)
WA5322400
System type
Community Water System
Population served
109
Service connections
41
Ownership
privately owned
Water source
groundwater (wells)

EDGEHILL WATER ASSN is one of 3,227 community water systems in Washington in the 500 or fewer people size category, serving 109 people from groundwater.

As of August 1, 2026, its federal record holds 56 entries between 1979 and 2025, all of which EPA lists as closed.

Of the 56, 52 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, the Total Coliform Rules, and inorganic chemicals.

Violation history

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    May 1, 2025 – May 31, 2025

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2022 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Toluene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Benzene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Styrene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2002 – December 31, 2004

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    December 1, 2000 – December 31, 2000

    Archived

  • Monitoring, Repeat Major (TCR)

    —

    Coliform (TCR)

    November 1, 2000 – November 30, 2000

    Archived

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    October 1, 2000 – October 31, 2000

    Archived

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 2000 – September 30, 2000

    Archived

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    January 1, 1994 – January 31, 1994

    Archived

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 1993 – September 30, 1993

    Archived

  • Monitoring, Repeat Major (TCR)

    —

    Coliform (TCR)

    January 1, 1993 – January 31, 1993

    Archived

  • Monitoring, Regular

    —

    Fluoride

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Mercury

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Nitrate

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Selenium

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Barium

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Chromium

    October 1, 1979 – October 31, 1979

    Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is EDGEHILL WATER ASSN required to publish a Consumer Confidence Report?

Yes. EDGEHILL WATER ASSN is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is EDGEHILL WATER ASSN’s next Consumer Confidence Report due?

EDGEHILL WATER ASSN’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does EDGEHILL WATER ASSN have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for EDGEHILL WATER ASSN.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

EDGEHILL WATER ASSN

Phone not on record

Maple Valley, WA 98038